NEW DELHI, Nov 11 (AFP) - An Indian politician's son who murdered a fashion model was back in jail on Wednesday after making rowdy appearances at nightclubs in New Delhi while released on parole, police said.

Manu Sharma was briefly allowed out of prison having served less than three years of a life sentence for shooting Jessica Lal, a model and celebrity barmaid who had refused to serve him after-hours drinks at a restaurant.

Sharma and his friends "along with their four armed guards, misbehaved with women" and a top policeman's son at the glamorous F-Bar of the Hotel Ashoka on Friday evening, police spokesman Rajan Bhagat told AFP.

The group were arrested after heading to the LAP Lounge Bar, another exclusive late-night venue in New Delhi, Bhagat said, adding that Sharma was returned to jail on Tuesday.

Sharma, son of senior Congress party figure Venod Sharma, was initially acquitted of Lal's murder despite dozens of witnesses being present, but a re-trial was held after widespread public outrage and he was convicted in 2006.

Lal, 34, was shot at close range in 1999 at a trendy nightspot packed with members of Delhi's most high-powered and well-connected families.

Sharma was at first found not guilty of the killing after a string of witnesses testifying for the prosecution changed their stories.

At his re-trial, two of his associates were also found guilty of conspiracy to murder and destruction of evidence.

Sharma was given parole from jail to visit his apparently ill mother on condition that he stayed in his family's home town of Chandigarh, 250 kilometres (155 miles) from New Delhi.